InChI=1/C18H21N5O4/c19-16-21-14(22-17(20)23-16)10-27-15(24)18(5-1-2-6-18)11-3-4-12-13(9-11)26-8-7-25-12/h3-4,9H,1-2,5-8,10H2,(H4,19,20,21,22,23)/f/h19-20H2 3E99752BEDCD096E